/Engine/Source/Runtime/Experimental/Chaos/Public/GeometryCollection/RecordedTransformTrack.h
Given a time, return either one or two frames. If InTime is exactly on a frame then only that frame is returned. If we are beyond the end of the track only the last is returned. For times in the middle of the track that are not exactly on a frame then the frame before and after the time are returned.
void GetFramesForTime ( float InTime, const [FRecordedFrame](API\Runtime\Chaos\GeometryCollection\FRecordedFrame) *& OutFirst, const [FRecordedFrame](API\Runtime\Chaos\GeometryCollection\FRecordedFrame) *& OutSecond ) const